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<?php $var = "I'm a good boy &@ is it secure var for input to DB."; if(preg_match("/^[a-zA-Z0-9.'&@ ]+$/", $var) !== 1) echo "var is NOT OK.<br/>"; else echo "var is ok.<br/>"; ?>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GJNON
function name:  (null)
number of ops:  11
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'I%27m+a+good+boy+%26%40+is+it+secure+var+for+input+to+DB.'
    4     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%5Ba-zA-Z0-9.%27%26%40+%5D%2B%24%2F'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        IS_NOT_IDENTICAL                                         $2, 1
          6      > JMPZ                                                     ~3, ->9
    5     7    >   ECHO                                                     'var+is+NOT+OK.%3Cbr%2F%3E'
          8      > JMP                                                      ->10
    7     9    >   ECHO                                                     'var+is+ok.%3Cbr%2F%3E'
    8    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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154.97 ms | 1394 KiB | 15 Q